| Subject | Re : [PATCH, RFC 09/22] crypto: lz4: don't build on ARM | From | "Chanho Min" <> | Date | Fri, 3 May 2013 08:52:10 +0900 |
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>It is not currently possible to build the LZ4 code on ARM, so let's >remove that option in Kconfig for now. > >lib/built-in.o: In function `lz4_compress64kctx': > lib/lz4/lz4_compress.c:339: undefined reference to `__ctzsi2' >lib/built-in.o: In function `lz4_compressctx': > lib/lz4/lz4_compress.c:157: undefined reference to `__ctzsi2' >lib/built-in.o: In function `lz4hc_commonlength': > lib/lz4/lz4hc_compress.c:102: undefined reference to `__ctzsi2' > lib/lz4/lz4hc_compress.c:102: undefined reference to `__ctzsi2' >lib/built-in.o: In function `lz4hc_insertandgetwidermatch': > lib/lz4/lz4hc_compress.c:230: undefined reference to `__ctzsi2'
Please, let me know the gcc version and tested defconfig. I didn't have any problem to build with gcc 4.6.4 on armv7. Some architecture need libgcc functions for __builtin_clz/ctz. Porting them to lib is in progress: http://marc.info/?l=linux-kernel&m=136748861811956&w=2 But, It doesn't happen on ARM, PowerPC and x86.
Thanks Chanho Min[unhandled content-type:application/octet-stream]
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